(c)
Move the end of the spring rod (21) away from the input lever (17).
(d)
Temporarily safety the flanged bushes (19),(24) and the sliding bush (20) in the input lever (17).
(4)
Disconnect the servo control (5) from the bracket (65) of the rudder
(2)
as follows:
(Ref. Fig. 404/TASK 27-24-51-991-004)
(a)
Remove and discard the cotter pin (72).
(b)
Remove the nut (71), the washer (70) and the bolt (61).
(c)
Use the TOOL - EXTRACTION, TAB WASHERS STA-LOK NSA5454 (SL90-314-7500) and remove the tab washer (68) with the spring ring (69) (Ref. TASK 20-22-00-000-001).
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Servo Control Connection at the Vertical Stabilizer Figure 403A/TASK 27-24-51-991-003-A
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Servo Control Connection at the Rudder
Figure 404/TASK 27-24-51-991-004
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(d)
Use the WRENCHES - NOTCHED, TIGHTENING OF NUTS NSA5454 (SL90-374-7500) and remove the slotted nut (67) from the bolt (62).
(e)
Remove the cupwasher (66) from the bolt (62).
NOTE : Do not remove the bolt (62) at this time.
____
(5) Disconnect the servo control (5) from the bracket (52) of the
vertical stabilizer (1) as follows:
(Ref. Fig. 403/TASK 27-24-51-991-003)
(a)
Remove and discard the cotter pin (45).
(b)
Remove the nut (46), the washer (47) and the bolt (56).
(c)
Use the TOOL - EXTRACTION, TAB WASHERS STA-LOK NSA5454 (SL90-314-7500) and remove the tab washer (49) with the spring ring (48) (Ref. TASK 20-22-00-000-001).
(d)
Use the WRENCHES - NOTCHED, TIGHTENING OF NUTS NSA5454 (SL90-374-7500) and remove the slotted nut (50) from the bolt (55).
(e)
Remove the cupwasher (51) from the bolt (55). NOTE : The servo control weighs approx. 5.5 kg (12.1254 lb).
____
(6)
Remove the bolt (62) from the bracket (65) of the rudder (2).
(7)
Remove the bolt (55) from the bracket (52) of the vertical stabilizer (1).
(8)
Remove the servo control (5) together with the the clamp (10) from
the brackets (65),(52).
(9)
Remove the sealing rings (74),(35) from the eye-end bearings of the servo control (5).
(10)
Remove the locking plate (64), the washer (77) and the bushes (73),(75) from the bracket (65) of the rudder (2).
(11)
Remove the locking plate (53), the washer (58) and the bushes (34),(36) from the bracket (52) of the vertical stabilizer (1).
(12)
Remove the clamp (10) from the servo control (5).
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Subtask 27-24-51-020-052-A
A. Removal of the Rudder Servo Control 1025GM/2025GM/3025GM
CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN
_______ YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO MUCH.
NOTE : If you must remove the three servo controls 1025GM/2025GM/3025GM
____
remove them in this sequence for easy removal:
-upper servo control 2025GM - Blue hydraulic system,
-center servo control 3025GM - Yellow hydraulic system,
-lower servo control 1025GM - Green hydraulic system. Complete the installation, adjustment and test of the upper and center servo controls before you remove the lower servo control.
NOTE : The removal of the upper servo control only is described. The
____ removal of the center servo control and the lower servo control is almost the same.
(1) Remove the cable assembly and the clamp (only at upper servo control 2025GM) as follows: (Ref. Fig. 402A/TASK 27-24-51-991-002-A)
(a)
Remove and discard the cotter pin (13).
(b)
Remove the nut (12).
(c)
Remove the screw (9) and the washer (8) from the clamp (10) and the eye-end (11).
NOTE : Do not disconnect the cable from the structure unless a
____ new installation is necessary.
(2) Disconnect the hydraulic system as follows:
(Ref. Fig. 403A/TASK 27-24-51-991-003-A)
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